Citation:

PANGAEA.986601 (dataset in review)

Name: Shrub and herb diversity, litter quality, MBC, bulk density, soil organic stocks and stability in Mixed Forests of the Loess Plateau, China (2023-2024)
Creator: Xianglin Chen
License: https://creativecommons.org/licenses/by/4.0/
Keywords: bulk density; Litter; loess plateau; MBC; mixed forests; Shrub and herb diversity

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Abstract:

This dataset was obtained through field sampling conducted at two key research stations: the Ansai Comprehensive Soil and Water Conservation Experimental Station (Chinese Academy of Sciences) and the Shanxi Jixian National Forest Ecosystem Observation and Research Station. It encompasses ecological parameters from mixed forests in China's Loess Plateau during 2023-2024, including shrub and herbaceous plant diversity, litter quality (C/N ratio, biomass), bulk density, organic carbon stocks, and stability indices. These data provide fundamental support for elucidating plant-soil interactions and assessing carbon sequestration potential in afforested ecosystems, contributing to research on sustainable forest management and climate change mitigation.

Keyword(s):

bulk density; Litter; loess plateau; MBC; mixed forests; Shrub and herb diversity

Supplement to:

Chen, Xianglin; Liu, Qi; Zhang, Shiqi; Zhang, Ke; Wang, Guoliang; Liu, Guobin; Liu, Ying (in prep.): Mixed-species and stand density jointly regulate soil carbon sequestration in Robinia pseudoacacia plantations in the Loess Plateau. Forestry Studies in China

Funding:

National Natural Science Foundation of China (NSFC), grant/award no. 42007062

National Natural Science Foundation of China (NSFC), grant/award no. 42130717

Coverage:

Median Latitude: 37.274363 * Median Longitude: 109.536705 * South-bound Latitude: 36.735833 * West-bound Longitude: 108.128056 * North-bound Latitude: 38.188144 * East-bound Longitude: 111.265783

Date/Time Start: 2024-08-05T00:30:11 * Date/Time End: 2024-08-12T07:00:00

Minimum ALTITUDE: 979.1 m * Maximum ALTITUDE: 1485.5 m

Event(s):

AS_BB * Latitude: 36.741111 * Longitude: 109.296666 * Date/Time: 2024-08-06T00:30:00 * Location: China * Campaign: * Basis: Ansai Station * Method/Device: Soil sample (SOILS) * Comment: Average coordinates. Device order: Soil auger; Root corer; Pole pruner; Ziplock bag

AS_BC * Latitude: 36.847223 * Longitude: 109.353194 * Date/Time: 2024-08-06T01:30:00 * Location: China * Campaign: * Basis: Ansai Station * Method/Device: Soil sample (SOILS) * Comment: Average coordinates. Device order: Soil auger; Root corer; Pole pruner; Ziplock bag

AS_BS * Latitude: 36.947222 * Longitude: 109.197778 * Date/Time: 2024-08-08T06:00:00 * Location: China * Campaign: * Basis: Ansai Station * Method/Device: Soil sample (SOILS) * Comment: Average coordinates. Device order: Soil auger; Root corer; Pole pruner; Ziplock bag

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Chen, Xianglin
2	LATITUDE	Latitude		Chen, Xianglin		Geocode
3	LONGITUDE	Longitude		Chen, Xianglin		Geocode
4	ALTITUDE	Altitude	m	Chen, Xianglin		Geocode
5	Slope position	Slope pos		Chen, Xianglin
6	Slope	Slope	deg	Chen, Xianglin		Direct observation method
7	DATE/TIME	Date/Time		Chen, Xianglin		Geocode – Smartphone Clinometer assistance
8	Simpson index of diversity	Simpson I		Chen, Xianglin	Calculation according to Chai et al. (2024)	Shrub
9	Shannon Diversity Index	H'		Chen, Xianglin	Calculation according to Chai et al. (2024)	Shrub
10	Pielou evenness index	J'		Chen, Xianglin	Calculation according to Chai et al. (2024)	Shrub
11	Margalefs richness index	MR		Chen, Xianglin	Calculation according to Chai et al. (2024)	Shrub
12	Simpson index of diversity	Simpson I		Chen, Xianglin	Calculation according to Chai et al. (2024)	Herb
13	Shannon Diversity Index	H'		Chen, Xianglin	Calculation according to Chai et al. (2024)	Herb
14	Pielou evenness index	J'		Chen, Xianglin	Calculation according to Chai et al. (2024)	Herb
15	Margalefs richness index	MR		Chen, Xianglin	Calculation according to Chai et al. (2024)	Herb
16	Robinia pseudoacacia, biomass, dry mass	R. pseudoacaci biom dm	t/ha	Chen, Xianglin	Allometric equations (AE)	Species-specific coefficients required
17	Tree, biomass, dry mass	Tree biom dm	t/ha	Chen, Xianglin	Allometric equations (AE)	Mixed-species, complete harvesting method; Species-specific coefficients required
18	Robinia pseudoacacia, carbon stock	R. pseudoacacia C stock	t/ha	Chen, Xianglin	Allometric equations (AE)	Allometric equations and carbon fraction
19	Tree, carbon stock	Tree C stock	t/ha	Chen, Xianglin	Allometric equations (AE)	Mixed-species; Allometric equations and carbon fraction
20	Robinia pseudoacacia, root biomass, dry mass	R. pseudoacacia root biom dm	t/ha	Chen, Xianglin	Allometric equations (AE)
21	Root, biomass, dry mass	Root biom dm	t/ha	Chen, Xianglin	Allometric equations (AE)	Mixed-species
22	Robinia pseudoacacia, root carbon stock	R. pseudoacacia root C stock	t/ha	Chen, Xianglin	Allometric equations (AE)	Allometric equations and carbon fraction
23	Root, carbon stock	RootsC stock	t/ha	Chen, Xianglin	Allometric equations (AE)	Mixed-species; Allometric equations and carbon fraction
24	Robinia pseudoacacia, leaf biomass, dry mass	R. pseudoacacia leaf biom dm	t/ha	Chen, Xianglin	Allometric equations (AE)	Complete harvesting method; Species-specific coefficients required
25	Robinia pseudoacacia, leaf carbon stock	R. pseudoacacia leaf C stock	t/ha	Chen, Xianglin	Allometric equations (AE)	Allometric equations and carbon fraction
26	Leaf, biomass, dry mass	Leaf biom dm	t/ha	Chen, Xianglin	Allometric equations (AE)	Mixed-species; Species-specific coefficients required
27	Leaf, carbon stock	Leaf C stock	t/ha	Chen, Xianglin	Allometric equations (AE)	Mixed-species; Allometric equations and carbon fraction
28	Robinia pseudoacacia, leaves, carbon	R. pseudoacacia leaves C	%	Chen, Xianglin	Measured using Potassium dichromate oxidation-titration method (Cr₂O₇²⁻/FeSO₄ titration)
29	Robinia pseudoacacia, leaves, nitrogen	R. pseudoacacia leaves N	%	Chen, Xianglin	Nitrogen Analyzer, Kjeldahl, K1160
30	Robinia pseudoacacia, leaves, carbon/nitrogen ratio	R. pseudoacacia leaves C/N	%	Chen, Xianglin	Calculated, see Comment	Calculated: (Carbon % / Nitrogen %)
31	Carbon, leaf	C leaf	%	Chen, Xianglin	Measured using Potassium dichromate oxidation-titration method (Cr₂O₇²⁻/FeSO₄ titration)	Mixed-species Leaf
32	Nitrogen, leaf	N leaf	%	Chen, Xianglin	Nitrogen Analyzer, Kjeldahl, K1160	Mixed-species Leaf
33	Leaf, Carbon/Nitrogen ratio	Leaf C/N		Chen, Xianglin	Calculated, see Comment	Mixed-species; Calculated: (Carbon % / Nitrogen %)
34	Shrub, aboveground, biomass, dry mass	Shrub abovegr biom dm	%	Chen, Xianglin	Allometric equations (AE)	Complete harvesting method
35	Shrub, aboveground, carbon stock	Shrub abovegr C stock	t/ha	Chen, Xianglin	Allometric equations (AE)	Allometric equations and carbon fraction
36	Shrub, root, biomass, dry mass	Shrub root biom dm	t/ha	Chen, Xianglin	Allometric equations (AE)	Complete harvesting method
37	Shrub, root, carbon stock	Shrub root C stock	t/ha	Chen, Xianglin	Allometric equations (AE)	Allometric equations and carbon fraction
38	Carbon, shrub	C shrub	%	Chen, Xianglin	Measured using Potassium dichromate oxidation-titration method (Cr₂O₇²⁻/FeSO₄ titration)
39	Nitrogen, shrub	N shrub	%	Chen, Xianglin	Nitrogen Analyzer, Kjeldahl, K1160
40	Shrub, Carbon/Nitrogen ratio	Leaves C/N		Chen, Xianglin	Calculated, see Comment	Calculated: (Carbon % / Nitrogen %)
41	Herb, aboveground, biomass, dry mass	Herb abovegr biom dm	t/ha	Chen, Xianglin	Allometric equations (AE)	Complete harvesting method
42	Herb, aboveground, carbon stock	Herb abovegr C stock	t/ha	Chen, Xianglin	Allometric equations (AE)	Allometric equations and carbon fraction
43	Herb, root, biomass, dry mass	Herb root biom dm	t/ha	Chen, Xianglin	Allometric equations (AE)	Complete harvesting method
44	Herb, root, carbon stock	Herb root C stock	t/ha	Chen, Xianglin	Allometric equations (AE)	Allometric equations and carbon fraction
45	Carbon, herb	C herb	%	Chen, Xianglin	Measured using Potassium dichromate oxidation-titration method (Cr₂O₇²⁻/FeSO₄ titration)
46	Nitrogen, herb	N herb	%	Chen, Xianglin	Nitrogen Analyzer, Kjeldahl, K1160
47	Herb, Carbon/Nitrogen ratio	Herb C/N		Chen, Xianglin	Calculated, see Comment	Calculated: (Carbon % / Nitrogen %)
48	Litter biomass, dry mass	Litter biom dm	t/ha	Chen, Xianglin	Allometric equations (AE)	Complete harvesting method
49	Litter, carbon stock	Litter C stock	t/ha	Chen, Xianglin	Allometric equations (AE)	Allometric equations and carbon fraction
50	Carbon, litter	C litter	%	Chen, Xianglin	Measured using Potassium dichromate oxidation-titration method (Cr₂O₇²⁻/FeSO₄ titration)
51	Nitrogen, litter	N litter	%	Chen, Xianglin	Nitrogen Analyzer, Kjeldahl, K1160
52	Litter, Carbon/Nitrogen ratio	Litter C/N		Chen, Xianglin	Calculated, see Comment	Calculated: (Carbon % / Nitrogen %)
53	Carbon, organic, soil	SOC	g/kg	Chen, Xianglin	Measured using Potassium dichromate-sulfuric acid external heating method	0-20 cm
54	Carbon, organic, soil	SOC	g/kg	Chen, Xianglin	Measured using Potassium dichromate-sulfuric acid external heating method	20-40 cm
55	Carbon, organic, soil	SOC	g/kg	Chen, Xianglin	Measured using Potassium dichromate-sulfuric acid external heating method	40-60 cm
56	Carbon, organic, soil	SOC	g/kg	Chen, Xianglin	Measured using Potassium dichromate-sulfuric acid external heating method	60-80 cm
57	Carbon, organic, soil	SOC	g/kg	Chen, Xianglin	Measured using Potassium dichromate-sulfuric acid external heating method	80-100 cm
58	Carbon, organic, soil	SOC	g/kg	Chen, Xianglin	Measured using Potassium dichromate-sulfuric acid external heating method	Total
59	Organic carbon, mineral-associated, per soil dry mass	MAOC/soil	g/kg	Chen, Xianglin	Measured using Dichromate oxidation of <54 µm fraction	0-20 cm
60	Organic carbon, mineral-associated, per soil dry mass	MAOC/soil	g/kg	Chen, Xianglin	Measured using Dichromate oxidation of <54 µm fraction	20-40 cm
61	Organic carbon, mineral-associated, per soil dry mass	MAOC/soil	g/kg	Chen, Xianglin	Measured using Dichromate oxidation of <54 µm fraction	20-60 cm
62	Organic carbon, mineral-associated, per soil dry mass	MAOC/soil	g/kg	Chen, Xianglin	Measured using Dichromate oxidation of <54 µm fraction	60-80 cm
63	Organic carbon, mineral-associated, per soil dry mass	MAOC/soil	g/kg	Chen, Xianglin	Measured using Dichromate oxidation of <54 µm fraction	80-100 cm
64	Carbon, organic, particulate	POC	µg/kg	Chen, Xianglin	Wet sieving, <53 µm followed by dichromate oxidation	0-20 cm
65	Carbon, organic, particulate	POC	µg/kg	Chen, Xianglin	Wet sieving, <53 µm followed by dichromate oxidation	20-40 cm
66	Carbon, organic, particulate	POC	µg/kg	Chen, Xianglin	Wet sieving, <53 µm followed by dichromate oxidation	40-60 cm
67	Carbon, organic, particulate	POC	µg/kg	Chen, Xianglin	Wet sieving, <53 µm followed by dichromate oxidation	60-80 cm
68	Carbon, organic, particulate	POC	µg/kg	Chen, Xianglin	Wet sieving, <53 µm followed by dichromate oxidation	80-100 cm
69	Soil carbon, stock	SC stock	t/ha	Chen, Xianglin	Calculated, see Comment	0-20 cm; Calculated: layered bulk density × SOC% × depth
70	Soil carbon, stock	SC stock	t/ha	Chen, Xianglin	Calculated, see Comment	20-40 cm; Calculated: layered bulk density × SOC% × depth
71	Soil carbon, stock	SC stock	t/ha	Chen, Xianglin	Calculated, see Comment	40-60 cm; Calculated: layered bulk density × SOC% × depth
72	Soil carbon, stock	SC stock	t/ha	Chen, Xianglin	Calculated, see Comment	60-80 cm; Calculated: layered bulk density × SOC% × depth
73	Soil carbon, stock	SC stock	t/ha	Chen, Xianglin	Calculated, see Comment	80-100 cm; Calculated: layered bulk density × SOC% × depth
74	Soil carbon, stock	SC stock	t/ha	Chen, Xianglin	Calculated, see Comment	Total; Summing organic carbon stocks across all layers
75	Organic carbon, mineral-associated/particulate organic carbon ratio	MAOC/POC		Chen, Xianglin	Calculated, see Comment	0-20 cm; Calculated: (MAOC / POC)
76	Organic carbon, mineral-associated/particulate organic carbon ratio	MAOC/POC		Chen, Xianglin	Calculated, see Comment	20-40 cm; Calculated: (MAOC / POC)
77	Organic carbon, mineral-associated/particulate organic carbon ratio	MAOC/POC		Chen, Xianglin	Calculated, see Comment	20-60 cm; Calculated: (MAOC / POC)
78	Organic carbon, mineral-associated/particulate organic carbon ratio	MAOC/POC		Chen, Xianglin	Calculated, see Comment	60-80 cm; Calculated: (MAOC / POC)
79	Organic carbon, mineral-associated/particulate organic carbon ratio	MAOC/POC		Chen, Xianglin	Calculated, see Comment	80-100 cm; Calculated: (MAOC / POC)
80	Microbial biomass as carbon, per soil dry mass	Biom microbial/soil	g/kg	Chen, Xianglin	Extracted	Chloroform fumigation-K₂SO₄ extraction (24h fumigation, FeSO₄ titration)
81	Soil, dry bulk density	Soil DBD	g/cm³	Chen, Xianglin	Calculated, see Comment	Core method (100cm3 core sampler, oven-dried at 105°C to constant weight)

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

2964 data points

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